Influtence of Lattice Binding on the K-series of Fluorine

Abstract

With a high-vaeuum spectrograph of a modified Siegbahn type using a bent mica crystal focussing in the direction towards the spectral line and wave-lengths simultaneously, the non-diagram line of Kα-series of F(9) were newly detected. And by use of semi-Moseley diagram their assignment has been done as they are homolog of Kα', α₂, α₄ of higher element. And the form of the Kα-lines of F and wave-lengths in many of its compounds such as LiF, NaF, KF, 2BeO-5BeF₂, CaF₂, BaF₂, AlF₃, K₂AlF₆ and F₂TaF₇. were determined microphotometrically, use being made of a step-sector dises and the half-width determined. Also the intensities relative to that of the FKα_{1, 2} line were measured for the Kα non-diagram line of various fluorine compounds.
The main result obtained are as follows:
(1) for all compounds in which the metal has the same valence, rather regular increase of wave-length of the FKα line with atomic number of the metallic atom was observed, (2) metallic atoms with different valencies has a tendency to shift towards shorter wave-length with valency; (3) the bandwidths of FKα_{1, 2} line changes linearly with the reciprocal of the distance between closest neighbours; (4) the intensities of the FKα_{3, 4} lines relative to that of FKα_{1, 2} changes from compound to compound in pecnliars manner.
The latter phenomena was explained on the basis of the de-excitation of the initial state (1s2p) of Kα_{3, 4} lines by an electron from the next atom by leakage through potential varrier between them and the quenching of the Kα_{3, 4} line occurs, which lead to conclusion that the anti-electron is conducted through the lattice and also as a measure of the degree of polarity